Funding for this research was provided by:
National Institutes of Health (Grant P30 EY014801)
North Minzu University Scientific Research Projects (2019KJ37)
North Minzu University Scientific Research Projects (2018XYZDX11)
National Natural Science Foundation of China (61861001)
the Ed and Ethel Moor Alzheimer’s Disease Research Program (Florida Health, 20A05)
Natural Science Foundation of Ningxia Province (2020AAC03220)
Received: 14 October 2019
Accepted: 17 August 2020
First Online: 8 September 2020
Ethics approval and consent to participate
: All research methods were conducted following the tenets of the declaration of Helsinki and approved by the ethics committee board of the University of Miami (ID 20070492). All subjects were recruited voluntarily and were informed about the purposes, methods, and the potential risks of the study. A signed consent form was obtained from each volunteer.
: All study subjects gave informed consent.
: The authors declare that they have no competing interests.